CN220692758U - Junction box and building structure - Google Patents

Abstract

The utility model relates to the field of building construction and equipment installation, in particular to a junction box and a building structure, wherein the junction box comprises a box body and a box cover, the box body comprises at least three box body surfaces, the box body surfaces comprise circumferential side surfaces, a bottom surface and a top surface, which are adjacent to the circumferential side surfaces, and a through channel penetrating through the bottom surface and the top surface or penetrating through the circumferential side surfaces is arranged on the box body; at least one end of the through channel is correspondingly and detachably provided with a box cover; the wiring holes are formed in the box cover and/or the box body, so that wires can be wired in the through channels through the wiring holes, and the wiring box is at least provided with two sides for wiring, so that the technical problems that the utilization rate of the wiring box is low and the direction of the installation position of the equipment is limited and inflexible due to the fact that only one side of the wiring box is used for wiring or equipment installation at present are solved. The utility model provides a building structure, includes building wall and above-mentioned terminal box, but the terminal box embedding is installed in building wall, realizes the pre-buried in order to reach the purpose of concealing the line body or more freely nimble passing through terminal box junction device.

Description

Junction box and building structure

Technical Field

The utility model relates to the field of building construction and equipment installation, in particular to a junction box and a building structure.

Background

Because part of the components are produced in factories and part of the components are cast in situ, the prefabricated components produced in the factories usually pre-embed wire boxes of equipment such as socket lamps and the like, wherein one side of the prefabricated components can be used for installing the equipment, and the other side of the prefabricated components is cast in situ to finish the whole floor slab or the whole wall body.

However, only one surface of the conventional wire box can be used for wiring, so that the wires have to be subjected to the wire splicing treatment on the surface of the equipment, and the surface layer of the equipment can be damaged to a certain extent; meanwhile, only one side can be used for installing equipment, so that one equipment can only correspond to one wire box, more than two equipment can not correspond to one wire box, the actual utilization rate of the wire box is low, and the range is limited. In addition, the design of the installation for wiring or equipment also makes the directional position of the equipment fixed and inflexible during the work arrangement.

Disclosure of Invention

The utility model provides a junction box and a building structure, which aims to solve the problems that the utilization rate of the junction box is low and the direction of the installation position of equipment is limited and inflexible because the junction box can only be used for wiring or equipment installation.

The utility model provides the following technical scheme for solving the technical problems: the junction box is used for wiring wires and comprises a box body and a box cover, wherein the box body comprises at least three box body surfaces, the box body surfaces comprise circumferential side surfaces, a bottom surface and a top surface, the bottom surface and the top surface are adjacent to the circumferential side surfaces, and a through channel is formed in the box body; the through channel penetrates through the bottom surface and the top surface or the through channel penetrates through the circumferential side surface; at least one end of the through channel is correspondingly and detachably provided with the box cover; and the box cover and/or the box body are/is provided with wiring holes.

Preferably, the junction box further comprises a fixing piece, the fixing piece is arranged on the box body corresponding to the opening of the through channel, the box cover is arranged at the through channel corresponding to the fixing piece in a covering mode, and the box body, the fixing piece and the box cover are fixed through threaded pieces.

Preferably, the fixing member is provided with a fixing screw hole, and the fixing screw hole is provided with a screw member to fix the fixing member with the box body.

Preferably, the box body is provided with corner position screw holes at intervals corresponding to the fixed screw holes, the box cover is provided with matching holes corresponding to the corner position screw holes, and the box cover and the fixing piece are fixed by screw pieces corresponding to the corner position screw holes and the matching holes.

Preferably, when all the box body surfaces are penetrated to form the through channel, the joint of the adjacent box body surfaces is provided with a neck structure so that a distance exists between the adjacent box body surfaces.

Preferably, the lid area is greater than or equal to the cross-sectional area of the through passage.

Preferably, a box cover covering the through channel on the junction box is optionally provided with a junction hole.

Preferably, when the box covers are arranged on the opposite box body surfaces, the positions of the wiring holes on the two box covers on the opposite box body surfaces correspond to each other.

The utility model also provides the following technical scheme for solving the technical problems: a building structure comprising a building wall and a junction box as described above, the junction box being mountable embedded within the building wall.

Preferably, the building structure comprises a through wiring pipe, the building wall body is provided with a wiring channel corresponding to the wiring hole, and the wiring Guan Rong is arranged in the wiring channel; the electric wires can enter the through channel through the wiring pipe and the wiring hole in sequence to carry out wiring work.

Compared with the prior art, the junction box provided by the utility model has the following beneficial effects:

1. the junction box provided by the embodiment of the utility model is used for wiring wires and comprises a box body and a box cover, wherein the box body comprises at least three box body surfaces, the box body surfaces comprise circumferential side surfaces, a bottom surface and a top surface, which are adjacent to the circumferential side surfaces, and a through channel is formed in the box body; the through channel penetrates through the bottom surface and the top surface or the through channel penetrates through the circumferential side surface; at least one end of the through channel is correspondingly and detachably provided with a box cover; the box cover and/or the box body are provided with wiring holes. Through being equipped with the through-channel at the box body, for carrying out the operation of wiring in the box body and provide necessary implementation space to after the lid seals the box body face opening that partly produced because of the through-channel, also provide accommodation space for the wiring part. The box cover and/or the box body are provided with wiring holes, so that wires can be wired in the through channel through the wiring holes.

2. The junction box of the embodiment of the utility model further comprises a fixing piece, wherein the fixing piece is arranged on the box body corresponding to the opening of the through channel, the box cover is arranged at the through channel corresponding to the fixing piece in a covering manner, and the box body, the fixing piece and the box cover are fixed through the threaded piece. The fixing piece corresponds the opening setting of through passage on the box body, can fix the lid on the box body on the one hand through the riveting effect of screw member and fixed screw hole, on the other hand can also fix the other parts that set up in the box body through passage.

3. The fixing piece in the embodiment of the utility model is provided with the fixing screw hole, and the fixing piece and the box body are fixed by arranging the screw thread piece on the fixing screw hole.

4. According to the embodiment of the utility model, the box body is provided with the corner position screw holes at intervals relative to the fixed screw holes, the box cover is provided with the matching holes corresponding to the corner position screw holes, and the box cover and the fixing piece are fixed by screw pieces corresponding to the corner position screw holes and the matching holes. The fixed screw hole interval is provided with the corner position screw hole relatively, and the cooperation hole on passing the lid and the corner position screw hole on the box body are fixed firm with lid and box body when the screw member, and then block the box body face opening that produces the through-channel.

5. When all the box body surfaces of the embodiment of the utility model are communicated to form a through channel, the joint of the adjacent box body surfaces is provided with a neck structure, so that a distance exists between the adjacent box body surfaces, and a certain installation space is reserved for multi-face wiring and multi-face installation equipment.

6. The area of the box cover is larger than or equal to the cross section area of the through channel, so that the box cover can completely seal the end face of the through channel formed by the through of the box body surface.

7. The box cover of the embodiment of the utility model is provided with wiring holes corresponding to the through channels. In principle, the connection box can be provided with connection openings on all sides, but one side for connection or installation of the device can be selected according to the actual requirements whether connection openings are provided. The wire connection hole is used for connecting the wire connection tube and guiding the wire body into the through passage for wire arrangement, so that the subsequent wire connection operation can be performed in the through passage.

8. When the box covers are arranged on the opposite box body surfaces, the positions of the wire connecting holes on the two box covers on the opposite box body surfaces correspond to each other, so that the wire is easier to penetrate through the two opposite box body surfaces, and the operation is convenient.

9. The building structure provided by the embodiment of the utility model comprises a building wall body and a junction box, wherein the junction box can be embedded and installed in the building wall body so as to realize the embedding of the junction box and achieve the purpose of hiding the junction box or connecting equipment through the junction box more freely and flexibly.

10. The building structure provided by the embodiment of the utility model comprises the through wiring pipe, the wiring pipe is arranged in the wiring channel corresponding to the wiring hole of the building wall, the wiring pipe is accommodated in the wiring channel, the electric wires can sequentially enter the through channel through the wiring pipe and the wiring hole to carry out wiring work, in addition, the wiring Guan Rong is arranged in the wiring channel, and the electric wires enter the through channel only through the guidance of the wiring pipe, so that the wire body is protected, and the influence and the damage caused by adverse factors generated by the environment are prevented.

Drawings

Fig. 1 is a schematic view of a junction box provided in a first embodiment.

Fig. 2 is an exploded view of the junction box provided by the second embodiment.

Fig. 3 is an enlarged view of a part of the structure of the junction box provided by the second embodiment.

Fig. 4 is a schematic view of a building structure provided in a third embodiment.

Fig. 5 is an enlarged view of a part of the construction of the junction box in the construction structure provided by the third embodiment.

Fig. 6 is a schematic diagram of a building structure (including a partially perspective structure) according to a third embodiment.

The attached drawings are used for identifying and describing:

first embodiment

1. A junction box;

11. a case body; 12. a box cover; 13. a fixing member; 111. a box surface; 121. a wiring hole; 122. a mating hole; 131. a fixed screw hole;

1111. a through passage; 1112. corner screw holes.

Second embodiment

2. A junction box;

21. a case body; 22. a box cover; 23. a fixing member;

211. a box surface; 221. a wiring hole; 222. a mating hole; 231. a fixed screw hole;

2111. a hollow cavity; 2112. corner screw holes; 2113. a neck structure; 2114. and a through hole.

Third embodiment

3. Building structure

31. A junction box; 32. Building a wall; 33. a wire connection tube;

311. a wiring hole; 312. a through passage; 321. prefabricating a wall body; 322. cast-in-situ wall body; 323. and a wiring channel.

Detailed Description

For the purpose of making the technical solution and advantages of the present utility model more apparent, the present utility model will be further described in detail below with reference to the accompanying drawings and examples of implementation. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

It should be noted that the terms "first" and "second" and the like in the description and the claims of the present utility model are used for distinguishing between different objects and not for describing a particular sequential order.

It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.

In the present utility model, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate an azimuth or a positional relationship based on that shown in the drawings. These terms are only used to better describe the present utility model and its embodiments and are not intended to limit the scope of the indicated devices, elements or components to the particular orientations or to configure and operate in the particular orientations.

Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in the present utility model will be understood by those of ordinary skill in the art according to the specific circumstances.

Furthermore, the terms "mounted," "disposed," "configured," "connected," and "connected" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements, or components. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Referring to fig. 1, a junction box 1 capable of connecting wires on two sides is provided in a first embodiment of the present utility model, and is used for connecting wires, and includes a box body 11 and a box cover 12, wherein the box body 11 includes at least three box body surfaces 111, the box body surfaces 111 include a circumferential side surface, a bottom surface and a top surface adjacent to the circumferential side surface, and a through channel 1111 is provided on the box body 11; the through passage 1111 penetrates the bottom surface and the top surface or the through passage 1111 penetrates the circumferential side surface; at least one end of the through passage 1111 is correspondingly detachably provided with a cap 12.

In this embodiment, the junction box 1 is a hexahedral box, and the box body is provided with a through channel 1111; the through channel 1111 penetrates any one of the bottom surface, the first side surface and the second side surface 11 to the opposite surface, and the through channel 1111 is two opposite box surfaces which are arranged through corresponding openings in the following process, so that necessary operation implementation space is provided for manual wiring operation in the box 11. The openings formed in the case body surfaces 111 corresponding to both ends of the through passage 1111 are provided to be selectively used for the installation of the indoor equipment, and the openings formed in both ends of the through passage 1111 can be blocked by the case cover 12 after the operation such as the on-site wiring or the installation of the equipment is completed when the terminal box 1 is not used for the installation of the indoor equipment, for example, when the terminal box 1 is used as a junction box. The accommodating space formed after the blocking accommodates the electric wires and related wiring parts in a sealing manner; on the other hand, the blocking of the box cover 12 can effectively prevent the internal circuit and parts from being influenced and damaged by adverse factors in the subsequent installation and treatment process of the junction box 1, and plays a role in mechanical protection. The blocking of the cover 12 also makes the junction box 1 more visually attractive after installation to meet the aesthetic demands of the public.

Further, referring to fig. 1, the junction box 1 further includes a fixing member 13, the material of the fixing member 13 is not specifically required, in this embodiment, the fixing member 13 is an iron sheet, the fixing member 13 is disposed on the box body 11 corresponding to the opening of the through channel 1111, and the box cover 12 is disposed at the through channel 1111 corresponding to the fixing member 13. The fixing member 13 is provided with a fixing screw hole 131 corresponding to the through channel 1111, and when the lid 12 is fixed on the case 11 through the riveting action of the screw member and the fixing screw hole 131, the stability of fixing the lid 12 is enhanced, and on the other hand, the fixing member can be used for fixing other parts placed in the through channel 1111 of the case 11, such as a circuit board, etc.

Further, referring to fig. 1, the number of the fixing members 13 is not specifically limited, and at least two fixing members 13 are preferably disposed, so that the fixing of the components thereof is firmly and stably performed by the fixing members 13 and the screws. The hidden trouble that the fixing is unstable and the other parts or structures are adversely affected due to the fact that only one fixing piece 13 is designed is avoided.

Further, referring to fig. 1, at least four corner screw holes 1112 are disposed on the case 11 at intervals with respect to the fixing screw hole 131, a mating hole 122 is disposed on the case cover 12 corresponding to the corner screw hole 1112, and a screw member is disposed corresponding to the corner screw hole 1112 and the mating hole 122 to fix the case cover 12 and the fixing member 13, so as to seal the opening of the through channel 1111 corresponding to the case surface 111.

Further, with continued reference to fig. 1, the area of the lid 12 is greater than or equal to the cross-sectional area of the through-passage 1111, so that the lid 12 can completely seal the end surface of the through-passage 1111 formed by the through-penetration of the lid surface 111.

Referring to fig. 2, a junction box 2 capable of multi-sided wiring is provided in a second embodiment of the present utility model, and the junction box is used for wiring wires, and includes a box body 21 and a box cover 22, wherein the box body 21 includes at least three box body surfaces 211, the box body surfaces 211 include circumferential side surfaces, and bottom surfaces and top surfaces adjacent to ends of the circumferential side surfaces, through passages 2111 are provided on the box body 21, and necessary implementation space is provided for wiring operations in the box body 21. The through-passage 2111 penetrates the bottom surface and the top surface or penetrates the circumferential side surface. At least one end of the through channel 2111 is correspondingly and detachably provided with a box cover 22 so as to seal off an opening of the through channel 2111 on the box body surface 211, and a containing space is provided for wiring parts after sealing off. The box cover 22 is selectively provided with a wiring hole 221, so that the electric wire can be wired in the through channel 2111 through the wiring hole 221.

Specifically, the junction box 2 of the present embodiment is configured as a hexahedral box, and the faces of the box body are all penetrated, so it can be understood that the hollow cavity 2111 is provided in the box body 21, and each face is provided with a through hole 2114 for connecting the hollow cavity 2111 and the outside, so as to provide necessary implementation space for performing the wiring operation in the box body 21; the box cover can seal the through hole 2114, and the sealed accommodating space is used for accommodating the electric wire and related wiring parts in a sealing manner; on the other hand, the blocking of the box cover 22 can effectively prevent the internal circuit and parts from being influenced and damaged by adverse factors in the subsequent installation and treatment process of the junction box 2, and plays a role in mechanical protection. The cover 22 is blocked, so that the junction box 2 after being installed is more attractive visually and meets the aesthetic requirements of the public.

Further, referring to fig. 2, when no side of the junction box 2 is used for wiring or installation of equipment, the through holes 2114 on each box body surface 211 can be matched and fixed with the box cover 22 by bolts, so that the box cover 22 seals the through holes 2114. When the cap 22 is used only to block the through hole and not to be used as a wiring, the cap 22 may not be provided with the wiring hole 221; when a wiring operation is required, a wiring hole 221 is provided in the box cover 22. Wherein the wire connection hole 221 is used to connect a wire connection tube to thereby guide the wire body into the hollow cavity 2111 for wire arrangement so that a wire connection operation can be performed in the hollow cavity 2111 later. In other words, each of the box faces 211 in this embodiment may be selected for use in connection with a wiring or mounting device in principle, so as to achieve the purpose of selectively multi-faceted wiring or multi-faceted mountable device, so that two or more devices can correspond to one wire box, and the wire box has high utilization rate; and meanwhile, the junction box body surface 211 or the box body surface 211 for mounting equipment is optional, so that the mounting position direction of the equipment is more flexible.

Specifically, referring to fig. 2, the case surface 211, which is not required for wiring or mounting equipment, may be used to seal the through hole 2114 with the cap 22 without interfering with mounting or the like. The through holes 2114 on the box body surface 211 of the equipment to be wired or connected are not required to be sealed by the box cover 22, and when the equipment installation or wiring process is completed in the hollow cavity 2111, the through holes 2114 on the box body surface 211 can be selectively sealed by the box cover 22 according to actual conditions or requirements, so that the whole junction box 2 can be conveniently installed and processed in the subsequent construction process, for example, the junction box 2 is installed and embedded in a wall body.

Further, referring to fig. 2 and 3, as in the first embodiment,

the junction box 2 of this embodiment also includes a fixing member 23, where the fixing member 23 is disposed on a side wall of the hollow cavity 2111 and is close to the box surface 211, the fixing member 23 is disposed on the box 21 corresponding to an opening of the hollow cavity 2111, the box cover 22 is covered on one surface of the box 21 corresponding to the opening, and the fixing member 23 is provided with a fixing screw hole 231 corresponding to the hollow cavity 2111. The fixing member 23 with the fixing screw hole 231 is provided, so that the lid 22 can be fixed on the case 21 by riveting the screw member and the fixing screw hole 231, thereby enhancing the stability of fixing the lid 22, and other parts such as a circuit board and the like placed in the through passage 2111 of the case 21 can be fixed.

Further, referring to fig. 2 and 3, the number of the fixing members 13 is not specifically required as in the first embodiment.

Further, referring to fig. 2 and 3, as in the first embodiment, at least four corner screw holes 2112 are provided on the case 21 at intervals with respect to the fixing screw hole 231, a mating hole 222 is provided on the cover 22 corresponding to the corner screw hole 2112, and a screw member is provided to fix the cover 22 and the fixing member 23 corresponding to the corner screw hole 2112 and the mating hole 222, so as to seal the opening of the through channel 2111 corresponding to the case surface 211.

Further, referring to fig. 2, the area of the lid 22 is greater than or equal to the cross-sectional area of the through hole 2114, so that the lid 22 can completely seal the through hole 2114 on the box surface 211 to protect the parts inside the hollow cavity 2111.

Further, referring to fig. 2, the present embodiment is different from the first embodiment in that each adjacent case face 111 may have no transition structure, in this embodiment, all case faces 211 are provided with through holes 2114 and form hollow cavities 2111, and the transition positions of the adjacent case faces 211 are provided with a slightly long neck structure 2113, so that a distance exists between the adjacent case faces 211, and a certain reserved installation space is reserved for multi-face wiring and multi-face installation equipment.

Further, referring to fig. 2, when the opposite case faces 211 are provided with the case covers 22 and the case covers 22 are provided with the wiring holes 211, the positions of the wiring holes 221 on the two case covers 22 on the opposite case faces 211 correspond to each other, so that the wires are in the same axial direction when wired in the hollow cavities 2111, the wiring is more convenient, or the wires are easier to operate when the wires need to penetrate the opposite case faces 211.

Here, according to fig. 1 to 3, two embodiments of the junction box are specifically and specifically described above, and in terms of forming the through-channel 1111 or the hollow cavity 2111 on the box body face 111 or the box body face 211, the first embodiment is the case where the number of through-channels is the lowest; the second embodiment is understood to be a case where all the case surfaces 211 are penetrated to form through passages and thus hollow cavities 2111 are formed, and the number of through passages is the highest. Thus, there are many intermediate forms or constructions of the junction box according to the teachings of the present utility model that vary from the two embodiments described above primarily, but not exclusively, by the number of through passages formed, whether or not adjacent box faces have neck structures 2113 as desired, and the particular shape of the overall junction box, etc.

In a word, compared with the prior art, the through channel is arranged on the box body in a mode of penetrating from at least one box body surface to the opposite box body surface, so that the window with operability is increased, the junction box can finish two-sided or multi-sided wiring, and meanwhile, due to the increase of the window, workers can rotate the corresponding window according to different installation scenes to carry out wiring or installation equipment.

Referring to fig. 4, a third embodiment of the present utility model provides a building structure including a building wall 32 and a junction box as described in the first embodiment, the second embodiment, or the junction box implemented by related concepts.

Specifically, referring to fig. 4, 5 and 6, the junction box in the first embodiment is selected in the present embodiment for detailed explanation. The building wall 32 may be a cast-in-place wall 322 or a prefabricated wall 321, and the junction box 31 may be embedded in the building wall 32 to pre-embed the junction box 31, thereby achieving the purpose of concealing the junction box or connecting equipment through the junction box 31 more freely and flexibly.

Further, referring to fig. 4, 5 and 6, the building structure further includes a through connection pipe 33, the building wall 32 is provided with connection channels 323 corresponding to the connection holes 311, the number of the connection channels 323 is generally matched with that of the connection holes 311, the connection pipe 33 is accommodated in the connection channels 323, and the wires can sequentially pass through the connection pipe 33 and the connection holes 311 to enter the through channel 312 for connection work. In addition, the wire tube 33 is accommodated in the wire connection channel 323, and the wire is guided by the wire tube 33 to enter the through channel 312, so that the wire body is protected from adverse factors such as moisture and the like caused by the environment. It should be noted that if the size or number of the wiring channels 323 is increased, the wall 32 may be partially or completely hollow, and the wiring channels 323 are not simply understood as only one wiring channel 323 alone can only be matched to one wiring pipe.

The above description of a junction box disclosed in the embodiments of the present utility model has been provided in detail, and specific examples are applied to illustrate the principles and embodiments of the present utility model, and the above description of the embodiments is only for helping to understand the method and core idea of the present utility model; meanwhile, as for those skilled in the art, according to the idea of the present utility model, there are changes in the specific embodiments and the application scope, and in summary, the present disclosure should not be construed as limiting the present utility model, and any modifications, equivalent substitutions and improvements made within the principle of the present utility model should be included in the protection scope of the present utility model.

Claims (10)

1. The utility model provides a terminal box for the electric wire carries out wiring work, its characterized in that: the box comprises a box body and a box cover, wherein the box body comprises at least three box body surfaces, the box body surfaces comprise circumferential side surfaces, and a bottom surface and a top surface which are adjacent to the circumferential side surfaces, and a through channel is formed in the box body; the through channel penetrates through the bottom surface and the top surface or the through channel penetrates through the circumferential side surface; at least one end of the through channel is correspondingly and detachably provided with the box cover; and the box cover and/or the box body are/is provided with wiring holes.

2. A junction box according to claim 1, characterized in that: the junction box further comprises a fixing piece, the fixing piece is arranged on the box body corresponding to the opening of the through channel, the box cover is arranged at the through channel in a covering mode corresponding to the fixing piece, and the box body, the fixing piece and the box cover are fixed through threaded pieces.

3. A junction box according to claim 2, characterized in that: the fixing piece is provided with a fixing screw hole, and the fixing screw hole is provided with a screw thread piece to fix the fixing piece with the box body.

4. A junction box according to claim 3, wherein: the box body is provided with corner position screw holes at intervals corresponding to the fixed screw holes, the box cover is provided with matching holes corresponding to the corner position screw holes, and the box cover and the fixing piece are fixed by screw parts corresponding to the corner position screw holes and the matching holes.

5. A junction box according to claim 1, characterized in that: when all the box body surfaces are communicated to form the through channel, the joint of the adjacent box body surfaces is provided with a neck structure, so that a distance exists between the adjacent box body surfaces.

6. A junction box according to claim 1, characterized in that: the area of the box cover is larger than or equal to the cross-sectional area of the through passage.

7. A junction box according to claim 1, characterized in that: the box cover of the junction box, which covers the through passage, is optionally provided with a junction hole.

8. A junction box according to claim 7, wherein: when the box covers are arranged on the opposite box body surfaces, the positions of the wiring holes on the two box covers on the opposite box body surfaces correspond to each other.

9. A building structure, characterized in that: comprising a building wall and a junction box according to claims 1-8, which junction box is mountable embedded in the building wall.

10. The building structure of claim 9, wherein: the building structure comprises a through wiring pipe, a wiring channel is arranged on the building wall body corresponding to the wiring hole, and the wiring Guan Rong is arranged in the wiring channel; the electric wires can enter the through channel through the wiring pipe and the wiring hole in sequence to carry out wiring work.